XMM-Newton EPIC Background Blank Sky Products Delivery

Request id:
0418

Delivered files:
  1. Blank sky event file 1: blanksky_events.fits
  2. Blank sky exposure file, non-vignetted 1: blanksky_expn.fits
  3. Blank sky exposure file, vignetted 1: blanksky_expv.fits

Request sent:
Mon, 11 July 2011

Request summary:
Instrument:MOS2
Filter: Thin
Mode: Full-Frame
Type: Ghosted

Advanced selection:
Revolution:0962 to 2000
Date:No selection
Time (s):No selection
Exposure (ks):No selection
Galactic column (cm-2):2.5e20 to 4.5e20
Count rate:No selection

Positional selection:
Equatorial coordinates selected:193.1478, -15.4457
Galactic coordinates selected:No selection
Radius selected (degrees):90


Diagnostic files:
  1. Revolution histogram 1: revnhist.jpg
  2. Ontime histogram (post flare cleaning) 1: ontimehist.jpg
  3. Component map (galactic coordinates) 1: map_selection.jpg
  4. Exposure weighted galactic column (cm-2): 3.60e20

Comment: Files were created for the selection requested. Details of the selection procedure:
  1. The instrument, filter, mode and filled status selection was completed successfully, events were found
  2. The selection by spatial coordinates was completed successfully, events were found
  3. The selection by revolution was completed successfully, events were found
  4. The selection by Galactic column density was completed successfully, events were found
  5. Please note that this selection required additional tailoring to avoid those component files with a large number of (removed) resolved point sources occuring in a specific region of the detector. This circular avoidance region was centred on CCD 1, at position (-1970.5, -1265.5) in detector coordinates, with a radius of 3000 pixels.
  6. In addition to the avoidance region selection as mentioned above, those potential component files with bright (removed) resolved point sources within the avoidance region were not considered for selection. This flux threshold was set at 6.0e-13 ergs s-1 cm-2 sr-1 (EPIC total flux, from the 2XMM catalogue source lists)